Need advice to add or replace e4200

[roumys]

Hey guys, I recently got an e4200. I live in a big house and have a guest house that needs wifi connection. On average there are about 15-20 wireless devices connected to my e4200. And because of that I have been having speed, range issues.

I currently got a 15mb internet connection. Devices connected consists of iphones,ipads,ipod touch,laptops and PCs. Mostly doing netflix, youtube streaming, and occassional online gaming. QOS did not help my issues (dropping connections, slow speeds).

I need advice on how to add range (first priority) and without sacrificing performance.

Based on my research, the options i found are to add a repeater which I dont like because it cuts throughput by half and then there is an option to get one of those powerap N ultra range routers, can't find many reviews on this though. or last option look for a far more stronger router maybe commercial grade one??

my budget is about 500 dollars and less.

SOrry about my english but to sum it all I need suggestions in making a wireless network that has a high range (about 5-10,000 sq m) and can handle a lot of connections ( about 15-20 wireless devices heavily streaming movies)

THank you for any advice.

If having a repeater is an option which would be a great repeater? I tried the universal repeater from netgear and its crap

 

[roumys]

Another option I have found is.... keep my existing e4200 connection, but add a powerplug which is directly connected to the e4200 then on another area of the house have another powereplug and connect it to a powerap-n which serves as an AP.

AP's are better than bridges or repeaters right